GB1386080A - Ac-dc converter - Google Patents
Ac-dc converterInfo
- Publication number
- GB1386080A GB1386080A GB6069271A GB6069271A GB1386080A GB 1386080 A GB1386080 A GB 1386080A GB 6069271 A GB6069271 A GB 6069271A GB 6069271 A GB6069271 A GB 6069271A GB 1386080 A GB1386080 A GB 1386080A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- pulses
- capacitor
- feb
- detecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
Abstract
1386080 Detecting the presence of an AC signal WESTINGHOUSE ELECTRIC CORP 11 Feb 1972 [11 Feb 1971] 60692/71 Heading H3T A circuit for detecting the presence of an A.C. signal comprises means 52, 54 for converting the signal to unidisectional pulses and switching means 58 for discharging storage means 64 in response to the pulses, the switching means remaining conducting during the continuous presence of the pulses. As shown the A.C. signal represents the presence of an energizing voltage across the coil of an actuator for the ram controlling the position of a workpiece 14 relative to the cutter 16, energization being effected by a limit switch 28 at the end of the stroke. The A.C. is clipped by Zener diodes 40, 42, full wave rectified by 52, 54 and senders conducting a transistor 58 to discharge a capacitor 64, the capacitor maintaining the transistor conductive between pulses. A low level signal is thus produced at 65. When the A.C. signal ceases the capacitor recharges and a high level signal is produced at 65.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11450271A | 1971-02-11 | 1971-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1386080A true GB1386080A (en) | 1975-03-05 |
Family
ID=22355611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6069271A Expired GB1386080A (en) | 1971-02-11 | 1972-02-11 | Ac-dc converter |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5410693B1 (en) |
| AU (1) | AU460671B2 (en) |
| BR (1) | BR7200754D0 (en) |
| CA (1) | CA937635A (en) |
| DE (1) | DE2205083A1 (en) |
| ES (1) | ES399168A1 (en) |
| FR (1) | FR2125341B1 (en) |
| GB (1) | GB1386080A (en) |
| IT (1) | IT946834B (en) |
| ZA (1) | ZA718526B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1409984A (en) * | 1973-03-08 | 1975-10-15 | Pioneer Screw Nut Co | Thread-forming self-locking fastener |
| JPS5340164U (en) * | 1976-09-13 | 1978-04-07 | ||
| JPS5397263U (en) * | 1977-01-11 | 1978-08-07 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3315094A (en) * | 1964-01-13 | 1967-04-18 | Northern Electric Co | Gated limiter circuit |
-
1971
- 1971-12-21 ZA ZA718526A patent/ZA718526B/en unknown
- 1971-12-24 AU AU37403/71A patent/AU460671B2/en not_active Expired
-
1972
- 1972-01-14 JP JP593472A patent/JPS5410693B1/ja active Pending
- 1972-01-22 IT IT19702/72A patent/IT946834B/en active
- 1972-01-24 CA CA132981A patent/CA937635A/en not_active Expired
- 1972-01-25 ES ES399168A patent/ES399168A1/en not_active Expired
- 1972-02-03 DE DE19722205083 patent/DE2205083A1/en active Pending
- 1972-02-09 BR BR754/72A patent/BR7200754D0/en unknown
- 1972-02-09 FR FR7204305A patent/FR2125341B1/fr not_active Expired
- 1972-02-11 GB GB6069271A patent/GB1386080A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2125341A1 (en) | 1972-09-29 |
| CA937635A (en) | 1973-11-27 |
| BR7200754D0 (en) | 1973-06-12 |
| AU460671B2 (en) | 1975-05-01 |
| FR2125341B1 (en) | 1974-09-13 |
| ZA718526B (en) | 1972-09-27 |
| IT946834B (en) | 1973-05-21 |
| JPS5410693B1 (en) | 1979-05-09 |
| DE2205083A1 (en) | 1972-08-24 |
| ES399168A1 (en) | 1974-12-01 |
| AU3740371A (en) | 1973-06-28 |
| JPS4717926A (en) | 1972-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |